Keystones — Bedrock
Five GCSE retrieval questions · 30 May 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 85 + 93
Answer: 85 + 93 = 178 -
2. Algebra Substitution
If x = 3, find the value of 2x + 4
Answer: 10 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:28
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 9, 16, 4, 13, 13
Answer: 11